Disclosed is an electric system including at least a first electric circuit, an electric device, a first printed circuit board supporting the first electric circuit, a device for shielding the electric device including at least a first shielding plate attached to the first printed circuit board, the first electric circuit including at least one inductor, characterized in that the inductor includes at least one first ferromagnetic part attached to the first printed circuit board and arranged to have at least one air gap with respect to the first shielding plate in such a way as to form a magnetic circuit with it.
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